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Nicole SinghAug 19, 2025
What to do if unit components are frozen on my Mi-T-M HSP-3504-3MGH?
- JjohnbondAug 19, 2025
If the unit components are frozen, allow them to thaw.
To Next PageTo Next PageWhat to do if unit components are frozen on my Mi-T-M HSP-3504-3MGH?
If the unit components are frozen, allow them to thaw.
Why is there no discharge at the nozzle of my Mi-T-M Pressure Washer?
Several factors can cause a lack of discharge at the nozzle: * Inadequate water supply: Ensure your hose is 3/4" in diameter and the water supply is fully turned on. * Kink in the high-pressure discharge hose: Replace the kinked hose. * Water inlet screen obstructed: Remove and clean or replace the screen. * Pump sucking air: Tighten all water intake connections and eliminate leaks in the intake line. * Adjustable grip not in high-pressure mode: Turn the grip counterclockwise to high pressure. * Obstructed or worn spray nozzle: Remove, clean, or replace the nozzle. * Damaged valve assembly on the pump: Remove, inspect, clean, or replace the valve assembly. * Worn pump packings: Replace the packings. * Unloader/Bypass valve malfunctioning: Repair or replace the valve.
What to do if my Mi-T-M HSP-3504-3MGH is leaking water from the Heat Dump Valve?
If water is leaking from the heat dump valve, it may be due to the water temperature being too high. Avoid operating the unit in bypass mode (with the trigger gun closed) for more than three minutes. If the issue persists, the valve might be defective and require replacement.
Why is my Mi-T-M HSP-3504-3MGH Pressure Washer oil milky or foamy?
If the oil appears milky or foamy, it indicates water in the oil. Change the pump oil and fill it to the proper level.
How to fix detergent not siphoning into Low Pressure Detergent mode on my Mi-T-M Pressure Washer?
If detergent is not siphoning, check the following: * Ensure the detergent strainer is fully submerged in the detergent solution. * Inspect, clean, or replace the detergent strainer if obstructed. * Inspect, clean, or replace the detergent hose if it is cut, obstructed, or kinked. * Open the detergent adjusting knob. * Turn the grip clockwise to move to low pressure if the adjustable grip on the dual lance is not in low pressure mode. * Clean or replace the nozzle assembly if it is plugged. * Use one high-pressure hose extension maximum. * Remove, clean, or replace the ball & spring in the venturi if stuck.
What to do if my Mi-T-M Pressure Washer burner runs erratically?
If the burner runs erratically, it could be due to: * Water in the fuel oil: Drain the fuel filter/water separator and fuel tank, then replace with clean fuel. * A dirty fuel filter/water separator: Replace the element. * A dirty fuel nozzle: Replace it. It is recommended to consult a service professional for the following issues: * Obstructed fuel pickup screen. * Malfunctioning fuel pump: Replace it.
What to do if water flows back into the detergent container of my Mi-T-M HSP-3504-3MGH?
If water flows back into the detergent container, the ball & spring in the Venturi may be reversed, missing, or corroded. Remove, clean, or replace these components.
What to do if my Mi-T-M Pressure Washer burner runs but will not heat?
If the burner runs but doesn't heat, check the following: * Ensure proper fuel supply; drain the tank and filter if needed, then refill with the correct fuel. * Check fuel pump pressure and replace the pump if needed. * Replace the fuel nozzle if it is dirty. It is recommended to consult a service professional for the following issues: * Obstructed fuel pickup screen. * Scale build up in heat exchanger coil.
What should I do if my Mi-T-M HSP-3504-3MGH Pressure Washer burner discharges white smoke?
If the burner discharges white smoke, first refuel the unit. If the white smoke persists, it is recommended to consult a service professional.
What does it mean if my Mi-T-M Pressure Washer burner discharges black smoke?
If the burner discharges black smoke, there is likely an insufficient air supply. Adjust the air supply as shown on page 18.
Provides contact details for Mi-T-M customer service, including a toll-free number for sales and service.
Details hazards and prevention measures related to fire and explosion risks, including fueling and ventilation.
Warns about operating in enclosed spaces due to carbon monoxide and exhaust fumes.
Covers dangers of high-pressure spray penetrating skin and safe nozzle handling.
Outlines precautions to prevent electrical hazards and contact with live components.
Advises caution around hot engine, muffler, and heat exchanger parts after operation.
Addresses risks from pressure washer malfunctions, freezing, and incorrect accessory use.
Highlights safety procedures when performing adjustments or maintenance near moving parts.
Covers general bodily injury risks from detergents, debris, and maintaining balance.
Illustrates and lists the components specific to the Mi-T-M HSP-Small Frame pressure washer.
Illustrates and lists the components specific to the Mi-T-M HSP-Large Frame pressure washer.
Recommends essential safety attire and guidelines for placing the unit on a level surface.
Specifies fuel types, octane ratings, and proper fueling procedures for engines and burners.
Details on connecting the dual lance and requirements for the water supply hose and inlet.
Explains the factory-set unloader and the function of the thermal relief valve for pump protection.
A checklist for inspecting the unit's oil, hoses, connections, and potential leaks before operation.
Step-by-step guide to prime the pump and flush the system before starting the unit.
Instructions for safely starting and operating the pressure washer using cold water.
Procedures for switching to hot water mode and using detergents for cleaning.
Essential steps for safely powering down the pressure washer and its engine.
Covers routine maintenance for the engine, pump, fuel separator, and burner system.
Detailed instructions on how to protect the pressure washer from freezing during storage.
Guides users through diagnosing and resolving problems with engine starting and water pressure.
Helps identify and fix issues related to fluid leaks, oil, and water in the system.
Addresses common problems with detergent siphoning and inconsistent water flow.
Provides solutions for issues concerning burner ignition, operation, and heating performance.
Lists specific parts and conditions that are not covered under the manufacturer's warranty.
General| Model | HSP-3504-3MGH |
|---|---|
| Category | Pressure Washer |
| Pressure | 3500 PSI |
| Flow Rate | 4.0 GPM |
| Engine | Honda GX390 |
| Engine Displacement | 389cc |
| Hose Length | 50 ft |
| HP | 13 HP |
| Pump Type | Triplex |
